Improvement in combined locks and latches for sliding doors



anni ttiioz,

EDWARD JfKEHOE, OF NEW YORK, N. Y ASSGNOR TO WIDLAM'A. HOP- KINS AND FREDERICK Z. DICKINSON. OF SAME PLACE. f

` Leners Patent Ne. 109.220. aerea November 15. 1870.

`IMPROVEMENT IN COMBIND LOCKS AND LATCHES FOR SLlDING D OORS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Beit known that I, EDWARD J. Kanon, ot' the city, county, and State of New York, have invented a new and useful Improvement in 'Locks for Sliding Doors, of which the following is a full, clear, and exact deseription, reference being had to the accompanying drawing forming part of' this specification, and in which-- Figure l represents a face view of the interior of the look, with its latch or locking-hook in gear with the keeper; and r Figure 2, a similar view, with the latch out of gear with the keeper, showing the lock as slid or drawn back;

'Figure 3 is al1 outside face view of thclock as soci from the. interior of the door;

Figure 4, a front edge View thereof 5 and Figure 5, a front edge View of the keeper.

Similar letters of reference indicate corresponding parts.

My improved lock7 while applicable to other sliding doors, is mainly designed for the sliding doors of sleeping-ears on railroads, and is so constructed 'and arrangedA that, while capable of being made Aseoureby the occupant of the apartment against'intrusion from the outside, said look can at all times be opened from the outsideby a key in the possession of thc conductor, which affords a protection against an improper use of vtho apartment.

rlhe invention consists in aeertain combination Aof devices with the locking-hook, to prevent the hook from being raised from the out-side, or from being operated by the knob from the outside, or in any way otherwise than by the key, vthe same. being operated from the inside of the door by a, thumb-piece working in or-through a peculiarly-shaped slot, so as to'admit of the hook being. locked or released at the option of the occupant of the apz'trtlneni.

'lhe invention 'likewise includes a certain combination with a sliding operating frame and with the locking-hook of a follower, for operation of the hook bya knob `irom the outside when thc catch is released v Said `lock is equal] y applicable, to right and left-hand doors, and is designed to be secured on the innersidc of the door. v

Referring tothe accompanying drawing-'V A represents the lock-case', made with a fast front plate andremovable back plate.

B is.the latch or locking-hook, pivoted, as at o, to the front lock-plate, and constructed with an arm or lip7 l), on which catches a lip or arm, l1', ot' a sliding i'rame, C.

This sliding frame has its back e made to i'orni or correspond with the one side of an oblong recess, d, having rounded ends formed in the lock-plate for insertion of the fingers, and whereby provisionis made,

yson entering or leaving the apartment.

without any objectionable outside protrusions of parts, for drawing back the sliding frame to detach the lockling-hook B ,from the counter-hook D of the keeper E,

'drawing back the door comes on the uppermost or little finger alone, and the action is so stii" as to make .it difficult for a lady or weak person tc open the door.

'With-my sliding frame the motion is much easier, and the several lingers of the hand are used to 'draw back the door; also, the motion of the sliding frame to detach the locking-hook from the keeper is much .less than that of the lever.

h Thelocking-,hook B is arranged to work within or under cover of a hood, F, east on the lock-plate, and said hook never protrndes beyond the lock, whereby it is not only concealed, but is prevented from coming into contact with and tearing the dress oi' a per- Sueh hood, accordingly, has a double function, namely oi' protecting the working parts of the lockfrom injury, -and of preventing accident to the wearing apparel of a person goingin and ont ot' the apartment. This, where the room is cramped, as it is in sleeping apartments of railway-cars, is oi' great importance. f

,lho striking-sin'tilcc or counter-hook l) is cast solid .on the plate portion of the keeper E, and is arranged under cover of a bonnet portion, saidplatc being scoured to the drier-post by two or more screws running parallel with the hook, and one or more screws lying at right angles to such course.

The locking-hook B may, it' desired, not only be opyerated by a direct application of the hand on the inside of the door tothe sliding frame (l, as described, but in an indirect mannertlirongh a knot-spindle from the outside of the door by means cfa follower, G, arranged to work on or against lugs g g, attached to the sliding frame (j. Such follower action, however, cannot be used when the locking-bolt ll is secured from the inside ol" the door by a locking-stop or catch, the mechanism of' which is arranged within the lock, and which can only be operated from the outside of the door by a kcywhich is carried by the conductor; hence thc occupant of the apartment may protect himself from intrusion by applying the catch to the loekingdnmk, as then the knob-spindle cannot be turned, but he cannot exclude the conductor, whose key releases thc catch,` and is capable, when necessary, of locking it again from the outside of the door.

',lo these ends the locking-hook 'i3 has pirotcd to it,

:isnt h, :in arm, H, which is in slottedeonnection, as

- nt fi, with :in under slidingbm or holt, 7:. carrying n.

tuinbler'or tnmblers, I.

vThis. :mn H is connecte-d below, through :t plate, mi,

with zi thumb-piece or catch, I, accessible from the inner side of the door and working in :t right-angled o1' bent slotfni, mede in the lock-plate.

in 3, which restricts the drm H from being,` lifted y is necessary to rei-se the hook.

'lo unlock the hook said thumb-piece is pushed hack in the slot n, so that it is free to li'tlin connnon with the `erm `II when raising or detziehing the locking-hook B from the keeper.

the key tenet npon'thev The key applied to the stem` of has a. like eect, inasmuch as by the action of the key on the sliding'bolt Ir, the v:nni H and thumb-piece I are swung backward, when the locking-hook B may be operated by the knob-Spindle.

W het is here claimed, l(vi-nil desired to be secured by Letters Patent, is-' 4 1. Thev thumb-piecev or crutch I rind slot n, in combination with the arm 'H, the sliding bolt 7a, sind the locking-hook B, substantially Y:ts :md for'the pi'nposes herein specified.

2. The combination of the follower G, operated by ai knob-spindle, with the sliding frame G, the fingerhole or slot d, and the locking-hook B, 'essentially as described.

EDWARD J. KEHOE.

Witnesses HENRY T. BROWX, FRED. HAYNES. ,v 

